Tool



Dec. 25, 1928. v 1,696,574

4 J. W. HOWELL TOOL Filed Nov. 17. 1926 2 Shoots-Shut 1 AT NEY Dec. 25, 1928.

J. w. HOWELL TOOL 1,696,574 Maser rier.

JAMES V7. HOVJELL, OF CLEVELAND, OHIO, ASSEGNGR TO THE WHITE MQTOE CQM- PANY, OF CLEVELAND, OHZQ, A GORPURATIOII TOOL.

Application filed November 17, 1926. serial No. 148,858.

This invention relates to tools and particularly to multiple jaw presses which are adapted for use in disassociating frictionally engaged machine elements and the like.

The object of this invention is to provide a tool that will facilitate frictionally held mechanisms which are insusceptible of snstentation on an arbor press or support in a vise without injury to some element of the assembly.

Other objects more or less ancillary to the foregoing will be pointed out in the course of the following description of the elements, combinations, arrangements of parts and applications of principles constituting the invention, and the scope of protection contemplated will be indicated in the appended claims.

in the accompanying drawings apracti- "ul embodiment of the invention is shown in association with a pinion shaft and antifriction bearing, but it is to be understood that these units are merely illustrative of a type of work to which the tool embodying the invention may be applied, and that the work exemplified in the drawings shall not define or restrict the limits of the invention.

Referring to the drawings:

Figure 1 illustrates a central vertical section of one form of the tool embodying the invention, together with a pinion shaft and bearing, the entire aggroupment being associated with an arbor press.

Figure 2 is a section in the plane of the line 22 of Figure 1.

Figure 3 is a detail View in perspective of one of the fingers comprising a portion of the tool and a fragmentary section of the supporting base therefor.

Figure 4 is a detail view similar to Figure 3 with a portion of the base broken away in the interest of clearness.

Figure 5 is a central vertical section corresponding to the lower portion of Figure 1, but with the pinionshaft in an actuated position.

In Figure 1 of the drawing, an arbor press 10, is shown which is of the conventional type having a ram 11, base 12, and a notched work plate 13. The tool 1 1, is supported on this plate being positioned in axial alignment with the ram 11, and contiguous with one of the slots in the work plate. Intermediate the ram 11, and the base 12, of the arbor press, there is a pinion shaft supported the separation of by the tool 14, through an anti-friction bearing 15, the inner race 16, of which is :ti-ictionally snstaii'ied upon the pinion shaft 17, in [lXCiPOfil't'lQi'l with the pinion.

The tool it, comprises a hardened steel ring or body member 18, having an annular groove 19, formed in a shouldered portion of its upper face. The groove 19, is circu lar in radial section and is formed with an inwardly disposed circumferential rib 20, springing from the outer wall of the groove slightly shots the center of its .m'edial'axis. A plurality of fingers 21, are slidably retained within the groove 19, being secured therein by the co-operative engagement of the rib 20, with the segmental toric base 22, of the finger. As illustrated in Figure 2, a recess the length of which is substantially equal to the width of the base 22, of the finger :21, is provided in one portion of the rib 20, for the purpose of facilitating the assembly of the base 22, of the finger within the groove 19. The fingers 21, are retained within the groove 19, opposite the recess, by a cap screw 24, which is screw-threaded through the ring 18, in alignment with the rib 20, at the center of the recess.

The finger 21, is constructed with a shank portion 25, transversely disposed to the toric axis of the base of the finger and formed with converging side walls of a suitable width to accommodate the admission of its end portion 26, between the teeth of the pinion 27. Suitable notches 28, are provided in the end of the fingers 21, and engage a ledge on the inner race of the bearing 16, thus supporting the pinion shaft and bearing when the fingers are adjusted. into their operative position.

In the application of the tool to the work herein illustrated, the pinion shaft 17, together with the anti-friction bearing 1.5, is first supported so that the fingers 21, of the tool 14, may be circumferentially adjusted and inserted between the teeth of the pinion 27. The tool is next advanced inwardly until the notches 28, in the ends of the tingers engage the bearing race 16, then the ring 18, may be suitably supported, as for example on the work plate 13, of an arbor press, and sutlicient power applied to the end of the pinion shaft to separate the hearing from its seat.

Vi hile the tool embodying the invention is shown and described as applied to a pinion shaft and hearing, it is obvious of course, that it may be readily adapted for other analogous purposes.

As many changes could be made in this construction without departing from the scope of the following claims, it is intended that all matter contained in the above description, or shown in the accompanying drawings, shall be interpreted as illustrative only and not in a limiting sense.

Having thus described the invention, what is claimed as new and what is desired to be secured by Letters Patent is:

1. A tool comprising a body member having a circular groove in its upper face, there being an inwardly extending circumferential flange contiguous one of upper edges of said groove, and fingers within said groove retained therein by said flange.

2. A tool comprising an annular body member. having a curved groove formed therein, and a plurality of fingers having base portions slidably mounted in said groove.

3. A tool comprising a body member having a toric groove formed therein, and lingers having segmental toric base portions pivotally and slidably supported. within said groove.

&. A tool comprising a body member having a toric groove formed therein, and a plurality of fingers having convergent terminating end portions and segmental toric base portions, the latter portions being pivotally and slidably supported within said groove.

5. A tool comprising a body member having rigidly associated curved guiding means, and a plurality of fingers slidably mounted upon said body member in sliding engage ment with said guiding means.

In testimony whereof I hereunto afiix my signature this 15th day of November, 1926.

JAMES W. HOVELL. 

